| 基于可变对角加载的稳健空时波束形成算法 |
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| 引用本文： | 任超,吴嗣亮,王菊,李加琪. 基于可变对角加载的稳健空时波束形成算法[J]. 北京理工大学学报, 2008, 28(11): 1008-1012 |
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| 作者姓名： | 任超 吴嗣亮 王菊 李加琪 |
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| 作者单位： | 北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081 |
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| 摘 要： | 针对对角加载方法中加载量难以确定的问题,提出了基于可变对角加载的稳健空时波束形成算法.该算法在宽带信号模型基础上,分解空时宽带波束形成的约束方程,针对多频点约束,推导出空时二维导向矢量真值,得到空时结构可变对角加载波束形成算法的最优权矢量,并给出加载量求解方程,准确地计算出空时波束形成器的对角加载量.仿真结果验证了该算法的稳健性.
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| 关 键 词： | 空时自适应 波束形成 导向矢量 对角加载 |
| 收稿时间： | 2008-05-08 |
Robust Space-Time Beamforming Algorithm with Variable Diagonal Loading |
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| REN Chao,WU Si-liang,WANG Ju and LI Jia-qi. Robust Space-Time Beamforming Algorithm with Variable Diagonal Loading[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2008, 28(11): 1008-1012 |
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| Authors: | REN Chao WU Si-liang WANG Ju LI Jia-qi |
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| Affiliation: | Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | A novel space-time adaptive processor based on variable diagonal loading is proposed.On the basis of analysis of constraint equations,the actual space-time steering vectors of the desired signal can be solved using the Lagrange multiplier methodology.The optimum weight vector of space-time beamforming algorithm can be calculated.And the amount of diagonal loading can be precisely calculated based on the uncertainty set of the space-time steering vectors.Results of computer simulation verify the efficiency of the proposed algorithm. |
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| Keywords: | space-time adaptive processing beamforming steering vector diagonal loading |
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